LIRS: an efficient low inter-reference recency set replacement policy to improve buffer cache performance
- Song Jiang, Xiaodong Zhang
- Computer ScienceMeasurement and Modeling of Computer Systems
- 15 June 2002
LIRS effectively addresses the limits of LRU by using recency to evaluate Inter-Reference Recency (IRR) for making a replacement decision, and significantly outperforms LRU, and outperforms other existing replacement algorithms in most cases.
Hadoop-GIS: A High Performance Spatial Data Warehousing System over MapReduce
- Ablimit Aji, Fusheng Wang, J. Saltz
- Computer ScienceProceedings of the VLDB Endowment
- 27 August 2013
Hadoop-GIS - a scalable and high performance spatial data warehousing system for running large scale spatial queries on Hadoop and integrated into Hive to support declarative spatial queries with an integrated architecture is presented.
Understanding intrinsic characteristics and system implications of flash memory based solid state drives
- Feng Chen, David A. Koufaty, Xiaodong Zhang
- Computer ScienceMeasurement and Modeling of Computer Systems
- 15 June 2009
This study reveals several unanticipated aspects in the performance dynamics of SSD technology that must be addressed by system designers and data-intensive application users in order to effectively place it in the storage hierarchy.
CAFTL: A Content-Aware Flash Translation Layer Enhancing the Lifespan of Flash Memory based Solid State Drives
- Feng Chen, Tian Luo, Xiaodong Zhang
- Computer ScienceUSENIX Conference on File and Storage…
- 15 February 2011
A Content-Aware Flash Translation Layer (CAFTL) is proposed to enhance the endurance of SSDs at the device level to reduce write traffic to flash memory by removing unnecessary duplicate writes and extend available free flash memory space by coalescing redundant data in SSDs.
Measurements, analysis, and modeling of BitTorrent-like systems
- Lei Guo, Songqing Chen, Zhen Xiao, Enhua Tan, Xiaoning Ding, Xiaodong Zhang
- Computer ScienceACM/SIGCOMM Internet Measurement Conference
- 19 October 2005
An analysis of representative Bit-Torrent traffic provides several new findings regarding the limitations of BitTorrent systems: due to the exponentially decreasing peer arrival rate in reality, service availability in such systems becomes poor quickly, after which it is difficult for the file to be located and downloaded.
RCFile: A fast and space-efficient data placement structure in MapReduce-based warehouse systems
- Yongqiang He, Rubao Lee, Zhiwei Xu
- Computer ScienceIEEE International Conference on Data Engineering
- 11 April 2011
This paper presents a big data placement structure called RCFile (Record Columnar File) and its implementation in the Hadoop system and shows the effectiveness of RCFile in satisfying the four requirements.
LDPC-in-SSD: making advanced error correction codes work effectively in solid state drives
- Kai Zhao, Wenzhe Zhao, Hongbin Sun, Tong Zhang, Xiaodong Zhang, Nanning Zheng
- Computer ScienceUSENIX Conference on File and Storage…
- 12 February 2013
A strong ECC alternative can be used in NAND flash memory to retain its reliability to respond the continuous cost reduction, and its relatively small increase of response time delay is acceptable to mainstream application users, considering a huge gain in SSD capacity, its reliability, and the price reduction.
Gaining insights into multicore cache partitioning: Bridging the gap between simulation and real systems
- Jiang Lin, Q. Lu, Xiaoning Ding, Zhao Zhang, Xiaodong Zhang, P. Sadayappan
- Computer ScienceIEEE 14th International Symposium on High…
- 24 October 2008
This paper has comprehensively evaluated several representative cache partitioning schemes with different optimization objectives, including performance, fairness, and quality of service (QoS) and provides new insights into dynamic behaviors and interaction effects.
Hystor: making the best use of solid state drives in high performance storage systems
- Feng Chen, David A. Koufaty, Xiaodong Zhang
- Computer ScienceInternational Conference on Supercomputing
- 31 May 2011
The system study shows that in a highly effective hybrid storage system, SSDs should play a major role as an independent storage where the best suitable data are adaptively and timely migrated in and retained, and it can also be effective to serve as a write-back buffer.
A permutation-based page interleaving scheme to reduce row-buffer conflicts and exploit data locality
- Zhao Zhang, Zhichun Zhu, Xiaodong Zhang
- Computer ScienceProceedings 33rd Annual IEEE/ACM International…
- 1 December 2000
It is shown that the permutation based scheme dramatically increases the hit rates on DRAM row-buffers and reduces memory stall time of the SPEC95 and TPC-C workloads.
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